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error Dixell
Error Code Er
Programming error — Hot Key upload or download operation failed.
? What Causes This
Communication error between Hot Key and controller, or Hot Key memory is corrupted.
✓ How to Fix It
- Remove the Hot Key from the receptacle.
- Wait a few seconds.
- Reinsert the Hot Key and try the operation again.
- If error persists, the Hot Key or controller may be faulty and require service.
Source: page 2 of the official manual
From the manual
This error code appears in:
Dixell XR06CX Temperature Controller